There's no need to insult him. He has a point, whether you like it or not. The fact virtually no one has done the test is testament to that.
Curious why you don't say anything to him about his insults?? Such as ...-anyone that does go for the diploma is stupid; anyone that administers the tests is a deciever; anyone that even thinks about doing it does not posses any critical thinking skills.
I, and those others with critical thinking skills look at the low numbers of applicants a little differently. There are a number of reasons more people haven't taken it. The largest being that people tend to get in a rut. They tend to just do the same basic things over and over. They go to play pool, they go to play someone. Seldom will a person actually care enough about improvement to actually break their routine and actually do something other than just playing with a friend. They tend not to practice alone, they tend not to do any drills, they tend not to take the test to see where they actually stand and then do the work necessary to improve. They say they want to improve, but they won't put in the work time to actually do so.
Some won't take it just because they don't want to face reality. They are afraid they will do poorly on it, and don't want to face that fact. Because if they do take it, then they will have shown to them in no uncertain terms that they are weak in certain areas that they thought they were strong in. Sometimes that is a hard thing to face- reality. But, until one does face reality, there can be no improvement.
What you will find by searching the posts of those that have taken it, are they are mostly the ones that are truly trying to improve on their own game. They are willing to do what it takes withing what time constraints they have to improve. They don't look for excuses of why they can't do something, instead, they look for ways to learn how to do something they currently can't do very well. And, you will also find they tend to be competitive people. There biggest competition being themselves, not an opponent. They are always testing themselves and trying to improve. Their are few people willing to do that.
Then, at the opposite end of the spectrum, you get those that are so unwilling to change themselves that they cannot test themselves at all. Instead, they take any test that could and would help them, and instead of allowing it to give them the satisfaction and knowledge they say they seek, they instead turn it around and slam the test. Such as the OP did here. Perfect opportunity to test himself against others without having to deal with his phobias of being around others. Yet, when it came down to it, he couldn't face reality. The reality of what the test might actually show him. So, instead of taking it, he condemns it and to have reason to do that, he then makes up how anyone else taking it is being decieved. Actually, I feel sorry for the guy. I won't just sit here and take his B.S., but yet I feel sorry that he has put himself is such a tight corner as he has, when it is really so easy to not be there.